1. To set forth as believable; to declare that an organization or a person can provide the kind of services desired by others: The educational association only accredits programs that meet its high standards.
2. Officially to recognize a person or organization as having met the standards needed to accomplish what is required: The new dictionary program was accredited by the lexicography institute.
3. To send an ambassador, or other important official, to represent a country: Victor will be accredited as the new official representative for his country next week.